Sanguinaria. Fig. 1.—Entire plant of Sanguinaria Canadensis

A, Entire plant of Sanguinaria Canadensis in its flowering stage.
a, rhizome and rootlets;
b, one of the outer bud-scales;
c, young leaf;
d, flower complete, except that the caducous sepals have fallen away. 3/4 natural size.

B, Different floral organs separated.
a, a sepal;
b and c, different petals;
d, stamens;
e, pistil in different views.

C, Ground plan of flower.

This image is from Some further observations on the structure of Sanguinaria canadensis in the American Journal of Pharmacy, 1895.